Avaya Writing Technician Interface Scripts Manuel d'utilisateur télécharger pdf (Page 47)

Command Reference

117382-A Rev. A 2-19

Example 2

In the following script, variable name b is assigned the sum of variable name a

plus 1.

setenv a 1

let b=$a+1

The let command evaluates an expression from left to right. You can use

parentheses to change the order of the evaluation.

Use the arithmetical and logical operators listed in T

able 2-2 and Table 2-3 with

the

let command.

Table 2-2. Arithmetical Operators

Operation Symbol

Addition +

Subtraction -

Multiplication *

Division /

Exponent **

Remainder %

Table 2-3. Logical Operators

Operation Symbol Deﬁnition

1’s complement ~ Bit negation operator that provides the

bitwise complement of an integer

AND & Arithmetic AND

Inclusive-OR | Arithmetic inclusive OR

Exclusive-OR ^ Arithmetic exclusive OR

Logical shift left << Bit-shift to the left, far-right bit set to zero

Logical shift right >> Bit-shift to the right, far-left bit set to zero

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 115 116

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Avaya Writing Technician Interface Scripts Manuel d'utilisateur Page 47